[llvm] r260538 - Revert r260507: "[X86] Enable the LEA optimization pass by default."

[Hans Wennborg via llvm-commits]

Author: hans
Date: Thu Feb 11 10:44:06 2016
New Revision: 260538

URL: http://llvm.org/viewvc/llvm-project?rev=260538&view=rev
Log:
Revert r260507: "[X86] Enable the LEA optimization pass by default."

This caused PR26575.

Modified:
    llvm/trunk/lib/Target/X86/X86OptimizeLEAs.cpp
    llvm/trunk/test/CodeGen/X86/lea-opt.ll

Modified: llvm/trunk/lib/Target/X86/X86OptimizeLEAs.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/X86/X86OptimizeLEAs.cpp?rev=260538&r1=260537&r2=260538&view=diff
==============================================================================
--- llvm/trunk/lib/Target/X86/X86OptimizeLEAs.cpp (original)
+++ llvm/trunk/lib/Target/X86/X86OptimizeLEAs.cpp Thu Feb 11 10:44:06 2016
@@ -35,10 +35,9 @@ using namespace llvm;
 
 #define DEBUG_TYPE "x86-optimize-LEAs"
 
-static cl::opt<bool>
-    DisableX86LEAOpt("disable-x86-lea-opt", cl::Hidden,
-                     cl::desc("X86: Disable LEA optimizations."),
-                     cl::init(false));
+static cl::opt<bool> EnableX86LEAOpt("enable-x86-lea-opt", cl::Hidden,
+                                     cl::desc("X86: Enable LEA optimizations."),
+                                     cl::init(false));
 
 STATISTIC(NumSubstLEAs, "Number of LEA instruction substitutions");
 STATISTIC(NumRedundantLEAs, "Number of redundant LEA instructions removed");
@@ -569,7 +568,7 @@ bool OptimizeLEAPass::runOnMachineFuncti
   bool Changed = false;
 
   // Perform this optimization only if we care about code size.
-  if (DisableX86LEAOpt || !MF.getFunction()->optForSize())
+  if (!EnableX86LEAOpt || !MF.getFunction()->optForSize())
     return false;
 
   MRI = &MF.getRegInfo();

Modified: llvm/trunk/test/CodeGen/X86/lea-opt.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/X86/lea-opt.ll?rev=260538&r1=260537&r2=260538&view=diff
==============================================================================
--- llvm/trunk/test/CodeGen/X86/lea-opt.ll (original)
+++ llvm/trunk/test/CodeGen/X86/lea-opt.ll Thu Feb 11 10:44:06 2016
@@ -1,4 +1,4 @@
-; RUN: llc < %s -mtriple=x86_64-linux | FileCheck %s
+; RUN: llc < %s -mtriple=x86_64-linux -enable-x86-lea-opt | FileCheck %s
 
 %struct.anon1 = type { i32, i32, i32 }
 %struct.anon2 = type { i32, [32 x i32], i32 }